diff --git a/old/01-serverless-image-resizer/requirements-dev.txt b/old/01-serverless-image-resizer/requirements-dev.txt
index cf19395..00c61f2 100644
--- a/old/01-serverless-image-resizer/requirements-dev.txt
+++ b/old/01-serverless-image-resizer/requirements-dev.txt
@@ -1,6 +1,6 @@
 boto3
 requests>=2.20
-Pillow==9.2.0
+Pillow==12.3.0
 mypy_boto3_ssm
 mypy_boto3_sns
 mypy_boto3_s3